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21.
Abdelsalam Ahmed M. Elsheikh Ahmed Chidambaram Sivakumar David Jean-Pierre Langlois J. M. Pierre 《Journal of Signal Processing Systems》2020,92(1):95-107
Journal of Signal Processing Systems - Convolutional Neural Networks (CNNs) and Deep Neural Networks (DNNs) have gained significant popularity in several classification and regression applications.... 相似文献
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Muthumanickam Agilan Gandham Phanikumar Dhenuvakonda Sivakumar 《Transactions of the Indian Institute of Metals》2018,71(11):2667-2670
In this study, weld solidification cracking behaviour of AA2195 Al–Cu–Li alloy was studied and compared with conventional AA2219 and AA2014 aluminium alloys. Cracking susceptibility was evaluated using varestraint test and Gleeble® hot ductility test and the slope of liquidus temperature as function of liquid fraction was also evaluated. Solidification cracking susceptibility of AA2195, AA2219 and AA2014 alloys was ranked based on the above methods. Consistent trend in cracking susceptibility was observed in all the methods where AA2195 and AA2219 alloys showed highest and lowest cracking susceptibility, respectively. 相似文献
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Nanoparticles of PbSe, Cu2Se, and CdSe are prepared for two equimolar concentrations (0.05 M and 0.1 M) by precipitation method at 130°C. The obtained nanoparticles were characterized by x-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and UV-visible analysis to study the structural, morphological, and optical properties and are discussed in detail. 相似文献
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Bellie Sivakumar 《国际水资源开发杂志》2014,30(2):200-210
Politics and human behaviour play key roles in the planning and management of shared water resources. The interactions between politics and water resources (hydropolitics) have been extensively studied, and the need to study the interactions between human behaviour and water-related activities (hydropsychology) is increasingly recognized. Although both hydropolitics and hydropsychology are useful, neither by itself is adequate across all scales of water resources and human society. This paper reasons that hydropolitics is a top-down view and hydropsychology is bottom-up, and argues for a framework to reconcile the two for a two-way and more balanced approach. 相似文献
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Kola Srinivas G. Sivakumar Ch. Ramesh Kumar M. Ananth Reddy K. Bhanuprakash V. Jayathirtha Rao Chih-Wei Chen Ying-Chan Hsu Jiann T. Lin 《Synthetic Metals》2011,161(15-16):1671-1681
We have synthesized and characterized donor–π–spacer–acceptor type molecules in which 1,3,4-oxadiazoles are π-spacers, triphenylamines are the donors and cyanoacetic acid are the acceptors for use as sensitizers in dye-sensitized solar cells (DSSCs). Detailed absorption, emission, electrochemical, photoelectrochemical and computational studies have been carried out on five novel derivatives. The dyes have an absorption range of 377–388 nm, and an emission in the range of 494–540 nm. There is a large charge transfer from the donor side to the acceptor side on excitation. The propeller shape of the triphenylamine and the bulky substituents on it help in reducing the dye-aggregation on TiO2 surface. The dyes exhibited good overall conversion efficiency (2.79–3.21%). Plane wave calculations indicate that the dye has a reasonably strong binding to the TiO2 surface and the generated DOS picture shows an overlap of the molecular orbitals of the dye and the TiO2 bands. We conclude that the dyes have a promising role as sensitizers in DSSC. 相似文献
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Venkatasubramanian Sivakumar P. D. Gayathri T. Amudha 《The International journal of environmental studies》2013,70(4):536-548
It is desirable to make effective use of solid wastes, as well as waste liquors, of the dye house generated from leather processing. The present study deals with the adsorption of Acid red 26 (Xylidine ponceau) dye using leather fibre waste (buffing dust) as substrate matrix by the means of ultrasound, magnetic stirring and conventional heating. The research examined the effect of various process parameters: ultrasonic power, concentration of dye, temperature and time. The dye uptake data have been fitted with Freundlich and Langmuir isotherms, indicating a useful dye adsorption process. A mechanism for dye adsorption in leather fibres has also been proposed. This study shows that it is possible to remove dyes from dye house effluent streams using leather waste fibres of buffing dust by means of ultrasound. Two different toxic wastes produced by the same industry can be effectively contained. This ‘Intra wastes interaction’ approach could reduce the burden of discarding wastes of other materials in the leather industry. 相似文献